Patents Assigned to Georex Industries, Inc.
  • Helicopter portable earth drilling apparatus
    Patent number: 4192393
    Abstract: A portable earth drilling apparatus adapted for helicopter transportation has been designed in light modular form and particularly adapted for use at high elevations under circumstances where prior art drill rigs are not capable of efficient operation.
    Type: Grant
    Filed: August 15, 1978
    Date of Patent: March 11, 1980
    Assignee: Georex Industries, Inc.
    Inventors: D. Gene Womack, Charles G. Hignight